614 



INDEX. 



Oleacese, 406. 



Oleanders, fertilisation of, 188. 



Olive family, 406. 



Oliver on self-fertilising Bell-flowers, 146. 



Onions, 364. 



Opuntia, increase of, by grafting, 219 ; 

 seedling, 221. 



Orange family, 197. 



Orange, leaf-grafting of an, 67 ; bud-graft- 

 ing of, 8 1 ; osage, the, 397 ; propagation 

 of. 198 ; when to sow seeds of, 595. 



Orchid, a hardy hybrid, 8, 421; family, the, 

 414; genera hybridised, &c., 419; seeds 

 of a bigeneric hybrid, 105 ; fertilisation 

 of, 416 ; hybrid, 421 ; hybrid, list of, 

 422, 423 ; increased vigour and size in 

 hybrid, 89 ; natural hybrids of, 8 ; seeds 

 of, &c., 417-419 ; supposed natural hy- 

 brid, 118 ; wild hybrids of, 414. 



Orchidaceoe, 414. 



Orchis apifera, self-fertilisation of, 144 ; 

 hybrids of, 8. 



Osage, Orange, 397 ; natural grafting in 

 the, 65. 



Osmanthus aquifolius (see Oleacese), 406. 

 (This oleaceous plant is found by 

 Messrs C. Lee & Sou to be quite 

 hardy at Isleworth when grafted 

 on the Common Privet (Ligustrum 

 vulgaris) as a stock.) 



Ovary, development of seedless, 152. 



Oxalidaceae, 424. 



Oxalis acetosella, cleistogamous flowers of, 

 146; seeds of, &c., 425. 



Oxlip, the, 7. 



Ozone and cross-fertilisation, 151. 



PACHYPHYTUM as a stock, 86. 



Packing for cuttings, 42. 



Pseonia (Peony), 517. 



Palm, a hybrid, 426; Cocoa-nut, a pre- 

 cocious, 91 ; dioecious kinds of, 100 ; 

 seeds, importation of, 39. 



Palmacese, 425. 



PandanacesB, 426. 



Pangenesis, Darwin on, 99. 



Pansies, 563. 



Pansy family, 562. 



Papaver (Poppies) hybrids, &c., 427. 



Papaveraceaj, 427. 



Papilionacese, 428. 



Papyrus family, 280. 



Paradise, true French, as an Apple-stock, 



Parkinson on Carnations, 232 ; on " double " 



grafting, 69. 

 Parsley, 557. 



Parsnip, Buckman on, 558. 

 Passiflora cceruleo-onychina, 130 ; hybrids 



of, 438. 



Passifloraceee, 436. 

 Passion-flower family, 436 ; fertilisation 



of, in. 



Pastinaca, 558. 

 Pavia, grafting and budding of, stocks 



for, &c., 525 ; hybrida, precocity in 



seedlings, of, 91. 

 Pavis on pollen influence, 104. 

 Pea family, 428. 

 Peach - budding, 460 ; stocks for, 72 ; 



splice-grafting the, 74 ; and Nectarines, 



stocks for, 458 ; seedling, &c., 461. 



Peach and Nectarine grafting, &c. , 459. 



Pear-apple, a, Meehan on, 105. 



Pear-grafting, curious feat in, 488 ; orch- 

 ards, rejuvenating, 487 ; double-grafting 

 of, 69 ; double-grafting for, 484, 485 ; 

 propagation of, 481 ; ornamental stocks 

 for, &c., 489; stocks for, 483 ; variability 

 of, when grafted, 63. 



Peas, cross-fertilised changes in, observed 

 by Mr Laxton (see ' Jour. Royal Hort. 

 Society,' vol. Hi. (n.s.)p. 10), 105, 433; 

 cross-fertilised, Wiegmann on, 105; cross- 

 fertilisation and change of colour in, 

 106; fertility of cross-bred or garden, 

 102 ; sorts of, 433 ; varieties of, 434 ; 

 flowers, structure of, 428. 



Pelargonium, colour of, 123 ; double-flower- 

 ed kind of, 328 ; grafting, 326 ; hybrid, 

 &c. , 322 ; ivy-leaved varieties, 328 ; old 

 cut-leaved, 325 ; stocks for, 326, 327 ; 

 tricolor, colours of, 125; types of, &c., 



3 I 9- 



Pentstemon, hybrids of, 535, 536 ; propor- 

 tion of good seedlings in, 94. 

 Peonies, herbaceous list of, 519-; list of 



Tree or Moutan, 518 ; types of, 517-519. 

 Peony family, 506 ; root-grafting of, 517. 

 Perennials, hardy, hints on sowing, 37. 

 Pereskia, propagation of, 224 ; stocks for 



Cacti, 224. 



Periwinkle family, 186. 

 Permanence not an exclusive right of 



wild species, 95. 

 Persimmon, 283. 

 Peruvian Bark, analysis of hybrid, 242 ; 



family, 237. 



Petrcea volubilis, root-grafting of, 587. 

 Petunias, colours of, crossed or hybrid, 



123 ; hybrids of, 539 ; hybridism and 



increase of, 544. 

 Philadelphace*, 440. 

 Philadelphus, varieties of, 441. 

 Philageria Veitchi, 443. 

 Philesiacese, 442. 

 Philodendron, hybrids of, 190. 

 Phlox family, 445 ; dimorphism in, 446. 



(Mr John Downie kindly informs me 

 that the early-blooming race of the 

 tall-growing or herbaceous Phlox 

 has descended from P. suffruticosa, 

 and the late or autumn flowering 

 kinds from P. decussata.) 

 Phlox, hybrids, 446. 

 Phloxes, proportion of good seedlings in, 



94- 



Phyllocacti, 220. 



I'hyllocactns Jenkinsoni, hybrid of, 109. 



Pine and Fir family, 257. 



Pine-apple family, 214. 



Pine-apple, introduction of, 215 ; Lamb- 

 ton Castle seedling, 217 ; origin of some 

 sorts of, 217. 



Pinguicula, 361. 



Pinks, layering, 587; origin of the, 231. 



Pinus, time for grafting, 76. 



Pipings, Carnation and Pink, 234 ; (i.e., 

 cuttings) of Pinks, &c., 587. 



Pisum, 433; fertility of cross-bred and 

 self-fertilised sorts of, 102. 



Pitcher-plant family, 400 ; American, 526. 



Pits, propagating, 17. 



Pittosporuin, seed-germination of, 151. 



